According to Wikipedia, Carl Pfeiffer[1] researched mental illnesses, mainly schizophrenia, from the point of brain chemistry imbalances and dietary changes to alter it.
The theory is, that there are chemical imbalances with patient's brain chemistry which can be influenced by dietary means. There's a book called Nutrient Power[2] which goes on about this theory and Pfeiffer. I haven't read it, but admittedly it sounds interesting. But then again, maybe it's all woowoo (It's rated as #1 bestseller in homeopathy medicine by Amazon, go figure).
Then again, for example many vitamin deficiencies alter mood and general "energy levels", and for example fish oil (or omega-3 fatty acids), according to Examine.com's[3] user-collaborated round-up, shows some effects on mental well-being, more on the physical functioning of the body though.
The theory is, that there are chemical imbalances with patient's brain chemistry which can be influenced by dietary means. There's a book called Nutrient Power[2] which goes on about this theory and Pfeiffer. I haven't read it, but admittedly it sounds interesting. But then again, maybe it's all woowoo (It's rated as #1 bestseller in homeopathy medicine by Amazon, go figure).
Then again, for example many vitamin deficiencies alter mood and general "energy levels", and for example fish oil (or omega-3 fatty acids), according to Examine.com's[3] user-collaborated round-up, shows some effects on mental well-being, more on the physical functioning of the body though.
Be skeptical.
1: https://en.wikipedia.org/wiki/Carl_Pfeiffer_%28pharmacologis... 2: http://www.amazon.com/Nutrient-Power-Heal-Biochemistry-Brain... 3: http://examine.com/supplements/Fish+Oil/